Licensed Insulation & Acoustical (C-2) contractors in Diamond Bar, CA

The California Contractors State License Board (CSLB) lists 3 Insulation & Acoustical (C-2) contractors in Diamond Bar, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

3 contractors

1. All About T-bar

   Diamond Bar, CA · CSLB #570421 · as of June 27, 2026
   Active · clear
2. Hammond Drywall Construction

   Diamond Bar, CA · CSLB #956694 · as of June 27, 2026
   Active · clear
3. Light Contracting

   Diamond Bar, CA · CSLB #1122793 · as of June 27, 2026
   Active · clear

See all Insulation & Acoustical (C-2) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.